Gel Memory Foam Hybrid Mattress — Sleep Tight, Rise Bright. The Sweet Night hybrid mattress Island was designed to prove that sharing your bed does not have to mean sacrificing your comfort and sleep. It combines the comfort and cooling effect of gel-infused memory foam with the enhanced support and motion isolation provided by individually pocketed tempered steel coils and the edge-to-edge support and resistance to sagging and rolling ensured by high-density foam. With a firmness level of 6.5/10, this mattress is perfect for heavy persons with a light sleep who do not want to disturb or be disturbed by their partners. Its soft and fluffy zippered quilted knit cotton cover turns allergies and dust mites into mere bad memories. Spotlight Top Features: Made of CertiPUR-US Certified foam without any harmful substances. Reinforced Edge Support — the outer pocket spring coils are strengthened, providing enough support to avoid falling or sliding off from the edge. Smartly Shipped in a Box — compressed, rolled and shipped in a box for convenient shipment and easy setup. Two thickness options: 10-inch & 12-inch. Multiple mattress sizes to choose from: Full, Queen, King. Body pressure and back pain relief. Motion isolation and coolness during hot summer nights. 100-days sleep trial. 10-year warranty. Comfort in all sleeping positions. Compatibility with all bed sizes, frames, and platforms. Conveniently compressed packaging. Free, contactless delivery across the U.S.